Suitable for 16-channel UHF wireless TV signal transmitters and set-top boxes for TV AV video transmission. Input analog audio and video signals from devices such as projectors, cameras, set-top boxes, and dance mats, transmitting and receiving standard analog TV signals wirelessly on standard home TVs or mobile TVs. This receiver, with its variable sensitivity, is suitable for penetration into approximately 1-3 rooms. Using a high-gain external antenna for long-distance transmission is not recommended to avoid interference. The RF signal output can be reduced and used as a TV modulator. These products are suitable for set-top boxes, cameras, wireless audio transmission of TV audio, factory testing of mobile TVs, projectors, game consoles, dance mats, and other devices requiring analog TV audio and video transmission. UHF 16 channels are adjustable; any of the 16 channels can be used. Operating voltage: DC 12V regulated power supply as 1.5A (not included). Size: 105 mm x 76 mm x 35 mm Material: Aluminum alloy Color: Black Package contents: 1 x UHF TV signal transmitter 1 x Antenna Only the above package contents, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture to be slightly different from the real thing. The allowable measurement error is +/- 1-3 cm.